Table of Contents
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PARAGRAPH
3.7.1 GRA 5500 Configuration/Checkout for Varying Installation Types ................................... 3-5
3.7.2 Using the GRA 5500 Retrofit Installation Tool................................................................... 3-6
3.7.3 Zero-Foot Calibration......................................................................................................... 3-16
3.7.4 Built-In Self-Test Functionality ......................................................................................... 3-16
3.8 Continued Airworthiness................................................................................................3-18
Section 4 SYSTEM INTERCONNECTS .........................................................4-1
4.1 Pin Function List ..............................................................................................................4-1
4.1.1 P55001.................................................................................................................................. 4-1
4.2 Power Functions ...............................................................................................................4-3
4.2.1 Aircraft Power ...................................................................................................................... 4-3
4.3 Serial Data Connections ...................................................................................................4-3
4.3.1 HSDB Over RS-422 ............................................................................................................. 4-3
4.3.2 ARINC 429 .......................................................................................................................... 4-4
4.3.3 Configuration Module .......................................................................................................... 4-4
4.3.4 USB ...................................................................................................................................... 4-5
4.4 Discrete I/O ......................................................................................................................4-5
4.4.1 Active Low Discrete Inputs ................................................................................................. 4-5
4.4.2 Altitude Alert (Annunciator) Outputs .................................................................................. 4-6
Appendix A Referenced Tables ........................................................................ A-1
Appendix B Outline and Installation Drawings ............................................. B-1
Appendix C Interconnect Examples ................................................................ C-1
GRA 5500 Installation Manual
Page vi
PAGE
190-01277-00
Rev. A
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